What grounds this interpretation of Frege as agreeing with Kant in holding ampliative
reasoning to "depend" on entities?
The key question to support the ampliative
step in IBE is to realize that "theory-choice operates within and is guided by a network of background knowledge".
There is no exceptionless guarantee in ampliative
logic and because of this looking for a counterexample is not part of the strategy.
He even noted the ampliative
character of resource-bounded, nondemonstrative reasoning, compared to nonampliative paradigms.
Norman Kemp Smith (London: Macmillan, 1929) 51: "Upon such synthetic, that is, ampliative
principles, all our a priori speculative knowledge must ultimately rest .
epistemological virtues such as consistency with a successful research program can be involved in a scientist's theoretical commitments.
We may be in a position to give an answer on the basis of what we already believe either by deductive or by ampliative
(roughly: inductive) inference.
All such reasoning is ampliative
and--as we all too often discover to our dismay--is both non-demonstrative and non-additive.
This Breazeale calls the 'phenomenological-synthetic' method, thus denoting both its performative and its ampliative
283), opposing probabilism of the sort widely endorsed by philosophers who embrace Bayesianism, supportive of the importance of forming testable conjectures, but in opposition to both probabilists and Popperians in favoring ampliative
But if your goal is to draw conclusions that go beyond what the premisses assert, then Modus ponens is not what you should use --you should use an ampliative
mode of inference instead.
In trying to show that the ampliative
rules of science don't universally underdetermine theory choice, he gives a historical example: the resolution of the debate between Newtonian and Cartesian physics.